Electrode Drying Thermal Imaging for Uniform Surface Evaluation
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Solution Overview
Problem
Existing methods for evaluating the drying quality of electrodes in secondary batteries are inadequate, as they fail to effectively assess the entire electrode surface, leading to potential defects and inefficiencies in the manufacturing process.
Innovation Solution
An electrode drying system utilizing a thermal imaging camera to capture real-time temperature distribution data in the width direction of the electrode, allowing for precise evaluation of drying quality and enabling adjustments to the drying process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a thermometer or infrared thermometer is used to measure surface temperature, then temperature measurement is possible, but the entire electrode surface cannot be effectively covered and measured
Solution Approach 1:
The patent uses a thermal imaging camera to capture a thermal image of the electrode surface, creating a visual copy of the temperature distribution. This allows the entire electrode surface to be measured simultaneously without physically contacting it with multiple thermometers, resolving the contradiction between measurement precision and surface coverage area
Solution Approach 2:
The patent replaces the mechanical measurement system (multiple thermometers) with an optical system (thermal imaging camera). This substitution enables non-contact, full-surface temperature measurement, overcoming the limitation of physical thermometer placement and achieving comprehensive electrode surface coverage
2Area of stationary object
If multiple thermometers are arranged to measure different regions, then more regions can be measured, but practical coverage of the entire electrode surface remains impossible
Solution Approach 1:
The patent merges the function of multiple thermometers into a single thermal imaging camera. This consolidation achieves comprehensive electrode surface coverage while reducing device complexity, as one camera can capture the entire surface in a single image without requiring multiple separate measurement devices
Solution Approach 2:
The patent transitions from point-based temperature measurement (1D/0D) to area-based temperature mapping (2D). The thermal imaging camera captures temperature distribution across the entire electrode surface simultaneously, achieving full coverage without increasing device complexity through multi-point measurements
3Productivity
If conventional temperature measurement methods are used, then simple measurement is possible, but real-time evaluation of drying quality cannot be achieved
Solution Approach 1:
The patent implements continuous temperature monitoring during the drying process by capturing thermal images in real-time. This allows for continuous evaluation of drying quality without interrupting the manufacturing process, achieving both high productivity and complete temperature distribution information
Solution Approach 2:
The patent provides real-time feedback on electrode drying quality through thermal imaging. The temperature distribution data is immediately available for evaluation, enabling prompt detection of drying defects and及时调整 of drying parameters, thus improving productivity while preserving complete temperature information
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables real-time evaluation of electrode drying quality, detects defects early, and reduces process losses by ensuring uniform drying across the electrode surface, thereby improving manufacturing efficiency.
Implementation Method 1
a thermal imaging camera which photographs a surface of the electrode in real time
Data Source
AI summary
A system for drying an electrode includes a drying unit which dries an electrode which is moving on a transfer line; a thermal imaging camera which photographs a surface of the electrode in real time; a calculation unit which stores an image taken by the thermal imaging camera, and generates temperature distribution data in a width direction of the electrode from the image; and an output unit which outputs the image and the temperature distribution data in a width direction of the electrode.